Slaughter cannot solve problems, but it can eliminate those who create them. As for who the mastermind behind the scenes is, it actually doesn't matter much.
In politics, being deliberately obtuse is often beneficial. Moxi Duchy quickly resolved the issue with a thunderous approach, leaving only the Elf Race as the remaining trouble.
If one were to stubbornly pursue the mastermind behind the scenes, it's uncertain whether they could be uncovered; and even if they were found, it's unlikely the situation could be controlled.
Those daring enough to plan this incident, with the power to bring it this far, and to specifically target Moxi Duchy, are very few.
Among these suspect powers, the Moxi People dare not provoke any of them. Uncovering them would only bring more trouble and add an enemy.
Of course, the Moxi Government officially announced the end of the incident, but the investigation in the shadows will certainly not cease.